Ransom.Linux.KASSEIKA.A
Linux
Threat Type: Ransomware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware
This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It drops files as ransom note.
TECHNICAL DETAILS
2,304,040 bytes
No
16 Dec 2023
Encrypts files
Arrival Details
This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Other Details
This Ransomware does the following:
- It does not append an extension to the encrypted files.
It accepts the following parameters:
- {File Name} → Encrypts the specified file
- {Directory Path} → Encrypts the specified directory
Ransomware Routine
This Ransomware avoids encrypting files with the following strings in their file name:
- RestoreFilesReadMe.txt
- config.fish
- .bashrc
- .zshrc
- .cshrc
- .tcshrc
- .kshrc
- .tcshrc
It avoids encrypting files with the following strings in their file path:
- bin
- boot
- dev
- etc
- lib
- lib32
- lib64
- libx32
- lost+found
- opt
- proc
- run
- sbin
- selinux
- snap
- srv
- sys
- tmp
- usr
- initrd.img
- vmlinuz
- cdrom
- kernel
- devices
- platform
- system
- vol
- rpool
- zvboot
It drops the following file(s) as ransom note:
- RestoreFilesReadMe.txt
SOLUTION
9.800
18.886.05
18 Dec 2023
18.887.00
19 Dec 2023
Step 1
Scan your computer with your Trend Micro product to delete files detected as Ransom.Linux.KASSEIKA.A. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:
Step 2
Restore encrypted files from backup.
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